Dear Charwak kumar ,
Delivery control will be depend on delivery header document and item category . the main control of delivery is depend on these controls that make your delivery how to work while creating .
two type of delivery header will use
1.standard delivery---LF (VL01N)
2.replacment delivery --NL (VL10B)
item categories also is different will be there .
1. standard ----TAN
2.replacement ---ULN
Please find the below screen shot and press F1 if you have any doubt , for more information you can google it . by checking one by one only you can come to know how it will control the delivery .
Regards,
C.B Reddy.